Add 81/27 and 27/72
1st number: 3 0/27, 2nd number: 27/72
81/27 + 27/72 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
81/27 = 81 × 8/27 × 8 = 648/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
27/72 = 27 × 3/72 × 3 = 81/216 - Add the two like fractions:
648/216 + 81/216 = 648 + 81/216 = 729/216 - 729/216 simplified gives 27/8
- So, 81/27 + 27/72 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/27+54/72 81/54+27/72 81/27+81/72